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2 or Auto

Martin Samson

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j3st3r Enthusiast

j3st3r

Posted
Posted

I'm not trying to get into this battle but I noticed something interesting. I have a 2016 LTZ. The off-road screen does show the shaft going forward from the transfer case lit up all the time. When you engage AUTO the whole front end lights up as a mirror image of the rear end. This is the same for 4 hi. Someone (I think a GM tech) pointed out the shaft going forward from the transfer case is always engaged and the image would tend to corroborate that. I will say I used AUTO recently due to ice sleet and snow and for got about it. A few days later I cut it off and other than the reduction in resistance I couldn't tell the difference. I was going over 70 when I realized it was still engaged.

 

0b21b563c47bc954c6560790c0a672eb.jpg

 

aeecd77bf8785801be98d8cba39da780.jpg

 

Sent from my Pixel XL using Tapatalk. My build thread: http://www.gm-trucks.com/forums/topic/192614-tenscourts-2016-ltzz71-ccsb-4wd-silverado/

I made this point in post 95 and 108. I think it may be why there is some confusion about them being the same as AWD trucks to some.
Jon A Senior Enthusiast

Jon A

Posted
Posted

Btw Jon, since you are monitoring this thread, I wanted to let you know I called you out a few weeks ago about where the 6.2's make power. You said the intake and exhaust. I called BS on you thinking thats impossible it has to be the manifolds.

 

Well did you look at the blackbear intake test? I was wrong! I couldn't believe it.

 

Sorry, I haven't felt like looking at those in detail yet. I'll get around to it.

Twin2turbo Enthusiast

Twin2turbo

Posted
Posted

This is a question for everyone with the electronic transfer case control knob on thier dash. Do you normaly have use 2 wheel or Auto for every day driving? My saleman told me to use Auto for extra safety. But I am wondering if that is really necessary.

Waterfowler41 Senior Enthusiast

Waterfowler41

Posted
Posted

2 in the summer, auto in the rain and winter that's how's I've been doing it since my envoy, is it the right way who knows

 

 

Sent from my iPhone using Tapatalk

hurricanoday Enthusiast

hurricanoday

Posted
Posted

There is a thread on here with a million replies debating what to do. I think you should do what ever you like. I kept mine in 2 till I was in the rain or pulling my boat out of the water. Basically I put it in auto when ever I think 4 could be needed

Donstar Senior Enthusiast

Donstar

Posted
Posted

I use auto 4wd like I would use 4X4. I have good tires and use 2wd for most of the year.

'17 Sierra Enthusiast

'17 Sierra

Posted
Posted

Why does this question keep getting asked?

Probably because some people don't know so they're asking on this forum (which is what it's for) to find out the answer to their question. That would be my guess.

FL335i Enthusiast

FL335i

Posted
Posted

Auto makes the front drive line be engaged. The truck drives more sluggish and it consumes more fuel. Owner's manual even states this. I treat Auto like "Subaru mode". IE- light off-road, rain, etc. normal dry driving is 2wd. I will say that I've never had a truck with an auto transfer case, and thought it was a gimmick. After owning my truck i won't buy one w/out it. Made me a believer. Especially when I had the SRA's and in the FL summer and it always raining. Very good feature when properly used.

hurricanoday Enthusiast

hurricanoday

Posted
Posted

I never noticed my truck being sluggish at all, about every time I had it in auto I didn't realize it till I randomly looked down to notice it. I also didn't notice much difference if any at all in mpg. maybe .000001 difference :driving:

muddkatt Senior Enthusiast

muddkatt

Posted
Posted

Why does this question keep getting asked?

 

Because no one uses the search feature...

 

Its easier for them to just ask than spend 2 minutes looking for the same question.

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